TY - JOUR
T1 - Enhancement of the irreversibility field in bulk MgB2 by TiO2 nanoparticle addition
AU - Xu, G.J.
AU - Grivel, Jean-Claude
AU - Abrahamsen, A.B.
AU - Andersen, N.H.
PY - 2004
Y1 - 2004
N2 - MgB2 samples doped with TiO2 nanoparticles were prepared and the effect of TiO2 addition on the superconducting transition temperature (T-c), irreversibility field (H-irr) and critical current density (J(c)) were investigated. It is found that the hexagonal lattice parameters a and c decrease with TiO2 doping. Tc decreases gradually from 38.2 to 37.8 K as the TiO2 content increases from 0 to 15 wt%. The H-irr increases at 20 K from 4.3 to 4.9 T as the TiO2 content increases from 0 to 10 wt%, and at the same temperature J(c) increases from 450 to 4250 A/cm(2) at 4.2 T. (C) 2004 Published by Elsevier B.V.
AB - MgB2 samples doped with TiO2 nanoparticles were prepared and the effect of TiO2 addition on the superconducting transition temperature (T-c), irreversibility field (H-irr) and critical current density (J(c)) were investigated. It is found that the hexagonal lattice parameters a and c decrease with TiO2 doping. Tc decreases gradually from 38.2 to 37.8 K as the TiO2 content increases from 0 to 15 wt%. The H-irr increases at 20 K from 4.3 to 4.9 T as the TiO2 content increases from 0 to 10 wt%, and at the same temperature J(c) increases from 450 to 4250 A/cm(2) at 4.2 T. (C) 2004 Published by Elsevier B.V.
KW - 5-I nano
U2 - 10.1016/j.physc.2004.03.235
DO - 10.1016/j.physc.2004.03.235
M3 - Journal article
SN - 0921-4534
VL - 406
SP - 95
EP - 99
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - 1-2
ER -